With the original ATCS chassis, Cooler Master brought the first truly custom alloy case to the market. Their ATCS 840 Classic has proven to be a worthy successor. With classic good looks and superb build quality, the 840 is poised to make as big an impact on the market as its predecessor. Besides being huge, this chassis is also very configurable and will hold all the hardware that virtually any enthusiast will want to stuff into it, including the watercooling folks.